I would check for trojans that "call home" over IRC.
Your box may be compromised.

There are tools at foundstone.com that will map the executable to the port activity.
Also - most current VirsuScan apps will detect the trojans.

HTH
Paul

-----Original Message-----
From: Craig Lynch [mailto:clynch@;tams.iit.edu]
Sent: Friday, November 01, 2002 11:38 AM
To: [EMAIL PROTECTED]
Subject: [SonicWALL]- unknown chat source


Hello list,

I have blocked irc (chat) on my firewall (Sonicwall Pro, 6.3.1 firmware) and when I 
check the logs I get repeated entries that indicate one of my nt servers is trying to 
chat with some destination and it is getting blocked.

The issue is that the server indicated has no chat facilities installed on it (that I 
can find) so I am puzzled as to where these chat requests are originating from.

Any ideas as to what I should check?

TIA



Craig Lynch
CNA,A+
Teachers Academy for Math and Science
312 949-2528

Visit us on the web at:

HTTP://www.tams.org

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